Turkey’s ruling Justice and Development Party lost its majority in Parliament in voting on Sunday. It is the biggest loss for the party since it came to power 13 years ago. It will now be forced to form a coalition government.

The defeat will hurt plans by President Recep Tayyip Erdogan to increase his powers. Unofficial results show the Justice and Development Party won 41 percent of the votes. Four years ago, it won almost 50 percent.